This puzzle:

Will Shortz notes: This is another lovely, clean construction from Brad and Doug. Most of the clues are theirs, too.

Constructor notes: BRAD: Doug and I usually achieve something close to a 50/50 split on the fill in our themeless puzzles. The kind of balance we're ... more

Constructor notes: BRAD: Doug and I usually achieve something close to a 50/50 split on the fill in our themeless puzzles. The kind of balance we're looking for is helped along by grid patterns that are fairly modest in their demands — whatever progress I make somewhere should leave Doug lots of flexibility. What I like about grids that Doug picks (like this one) is that they are manageable but they usually present some extra degree of difficulty, like a pair of 10s feeding into the center or reaching into the corners, when we could have bailed out with cheater squares instead. Doug plunked down a nifty new 1A here and worked to 32A. We took turns on the other corners until we were done. We've got movie trivia, history, gastronomy, and baseball here — all elements we both like. I humbly submit a fresh clue for 16A. Doug has concocted some crafty ones for a couple of the 9-letter entries.

DOUG: 1A is an example of my favorite type of themeless seed entry. It may not be familiar to most solvers, but the entry is quite figure-out-able. And most importantly, it's an interesting phrase to learn. You can use it to impress your easily impressed friends at your next cocktail party. I try not to use unfamiliar names as seeds, because they're quickly forgotten once the puzzle is solved. And let me add that I always learn something new (a cool word, some fun trivia, etc.) when constructing a puzzle with Brad.

Jeff Chen notes: A sustained professional duo, working together to produce exponentially more than the sum of its parts, is a rare and beautiful ... more

Jeff Chen notes: A sustained professional duo, working together to produce exponentially more than the sum of its parts, is a rare and beautiful thing. Kerry Walsh and Misty May-Treanor's non-verbal communication on the sand volleyball court. Jeff Meckstroth and Eric Rodwell trading killer leads at the bridge table. Danny Ocean and Rusty Ryan working a heist-of-the-century angle. All of them are on notice, because Wilberson is on the rise.

It's infrequent that two experts can work so well together, producing quality of this level over an extended stretch of time (this is their fifth NYT collaboration and they have more together in the LAT) without a clash of egos. The grid is well-constructed, with little dreck, and contains so many of the types of phrases that either shine or teach a solver something new. I had to wrestle with the unfamiliar TREEGUARDS but enjoyed reading up on something I walk past all the time (the iron fencing around a tree planted on a city sidewalk).

The SW corner was a little difficult for me due to TREEGUARDS and CARO, but ultimately fair. It's amazing that this is the only hiccup considering the difficulty of this particular construction. Often times the marquee answers are pushed to the perimeter, which helps to isolate them and make construction easier (generally more segmented = easier construction). Doug and Brad extend WARSAW PACT, SAGE GREEN, STEADICAM, RETIREMENT, WEEDEATER, and WORRISOME into the center of the grid, raising the degree of interconnect and thus the level of difficulty. Not all those answers are sparkly, but brilliant clues like "Avocado relative" (not the fruit but the color) add to the solving experience.